Pressure foot of sewing machine

Abstract

The invention provides a pressure foot of a sewing machine. The pressure foot comprises a pressure foot body, pin rollers and rubber line belts, wherein three grooves are formed in the bottom of the pressure foot body, at least three pairs of small holes are correspondingly formed in the two sides of each groove, all the small holes are located in a same horizontal line, the pin rollers matched with the grooves are arranged in the small holes, the surfaces of the pin rollers are higher than the edges of the two sides of each groove, the pin rollers among the grooves are covered and connected through the end-to-end rubber line belts, and the rubber line belts drive the pin rollers to roll freely. The pressure foot of the sewing machine has the advantages that the rolling pressure foot is adopted to replace a sliding pressure foot, friction resistance is reduced, the cloth feeding process is well completed, the sewing quality and technology are improved, the sewing speed is increased, and meanwhile, the pressure foot is convenient to produce and use, safe, reliable, high in working efficiency, remarkable in benefit, and suitable for application and popularization.

Description

technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine presser foot. Background technique [0002] The sewing machine originated in the late 1980s. Through the development of science and technology, from manual to foot to electric, until now the computerized sewing machine, through a series of technological improvements, has greatly improved in speed and other aspects, but in the sewing process The most critical part of the machine - the cloth feeding mechanism has not been improved. At present, sewing equipment relies on feeding teeth and presser feet to complete the cloth feeding. As a result, in the clothing production process, the same piece of cloth is used to make the same clothing, and people with different operating skills will have different sewing quality and clothing prices. There will be a big difference. In the clothing sewing process, the sewing equipment plays a key role, and the needle threa...

AI Technical Summary

Problems solved by technology

Disadvantage 2: Because the double-layer cloth is under pressure, although the friction between the two layers is greater than that of the presser foot, there will often be two pieces of cloth that are originally the same length, and finally the phenomenon that the upper cloth is slightly longer than the lower cloth, This kind of phenomenon will be better if the workers have good skills, but it cannot be completely avoided. The surface is smoother, and the performance will be more serious. This is an insurmountable shortcoming of the traditional presser foot.

Disadvantage 3: Because the traditional presser foot is often scraped by the cloth feeding teeth, two scars will appear on the bottom of the presser foot within a certain period of time, resulting in a reduction in the life of the presser foot and the need for frequent replacement. This is also a great disadvantage of the traditional presser foot

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